Update text in exercises and solutions

Should be equivalent where appropriate

Author: ma595

exercises/01_penguin_classification.ipynb

@@ -20,7 +20,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Task 1: Look at the data\n",
+    "### Task 1 -- Part(a): Look at the data\n",
     "In the following code block, we import the ``load_penguins`` function from the ``palmerpenguins`` package.\n",
     "\n",
     "- Call this function, which returns a single object, and assign it to the variable ``data``.\n",
@@ -357,7 +357,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Complete __len__() and __getitem__() functions\n",
+    "# Complete the __getitem__() function\n",
     "# See Task 4 ``TODOs`` in PenguinDataset class.\n",
     "\n",
     "# Create train_set\n",
@@ -540,7 +540,7 @@
     "# Print the model architecture.\n",
     "# print(res_model)\n",
     "\n",
-    "list(res_model.parameters())"
+    "# list(res_model.parameters())"
    ]
   },
   {
@@ -785,7 +785,7 @@
     "\n",
     "        # compute gradients\n",
     "\n",
-    "        # nudge parameters in direction of steepest descent c\n",
+    "        # nudge parameters in direction of steepest descent\n",
     "\n",
     "        # append metrics\n",
     "\n",

worked-solutions/01_penguin_classification_solutions.ipynb

@@ -20,7 +20,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Task 1: look at the data\n",
+    "### Task 1 -- Part (a): Look at the data\n",
     "In the following code block, we import the ``load_penguins`` function from the ``palmerpenguins`` package.\n",
     "\n",
     "- Call this function, which returns a single object, and assign it to the variable ``data``.\n",
@@ -346,7 +346,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Task 2: creating a ``torch.utils.data.Dataset``\n",
+    "### Task 2: Creating a ``torch.utils.data.Dataset``\n",
     "\n",
     "The penguin data reading and processing can be encapsulated in a PyTorch dataset class.\n",
     "\n",
@@ -493,7 +493,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Task 3: obtaining training and validation datasets\n",
+    "### Task 3: Obtaining training and validation datasets\n",
     "\n",
     "- Instantiate the penguin dataloader.\n",
     "  - Make sure you supply the correct column titles for the features and the targets.\n",
@@ -573,7 +573,7 @@
     "Modify the `PenguinDataset` class above so that the tuples of numbers are converted to PyTorch `torch.Tensor` s and the string targets are converted to indices.\n",
     "\n",
     "- Begin by importing relevant PyTorch functions.\n",
-    "- Complete `__len__()` and `__getitem__()` function above.\n",
+    "- Complete the `__getitem__()` function above.\n",
     "\n",
     "Then create a training and validation set.\n",
     "\n",